5700XT crashing in Shogun 2

My game crashes in Shogun 2 during battles in foggy weather. It happens when using kisho ninja and they throw firebombs. The moment the firebombs hit the target, the system crashes. If I somehow get past that, I use fire arrows and after a minute of fighting, the system crashes. I haven't tried other battle scenarios since I can reproduce this crash consistently, so no need to test other battle scenario.

I've tried numerous graphical settings. This is part of my troubleshooting. I continue to decrease settings to test, but I have a system that should be destroying this game from 2011 (amd fine wine?).

The game sends me to the desktop where I have to end the game in task manager.

It also will sometimes crash when you are in the main menu screen.

Is this a driver problem, or do I need to continue troubleshooting my system?